Ecology Chapter: Decomposers and Energy Flow

False (B)

Decomposers break down dead organisms and waste products, releasing nutrients back into the ecosystem for producers to use.

<p>organisms</p> Signup and view all the answers

<p>The 10% rule explains the pyramid shape because there is less energy available at higher trophic levels, leading to fewer individuals at each successive level.</p> Signup and view all the answers

<p>Photosynthesis = The process where plants convert light energy into chemical energy. Respiration = The process by which organisms break down food to release energy. Decomposition = The breakdown of dead organisms and waste products by decomposers. Fossilisation = The process by which organic matter is transformed into fossil fuels over millions of years. Combustion = The burning of fossil fuels, releasing carbon dioxide into the atmosphere.</p> Signup and view all the answers

<p>$C_6H_{12}O_6 + 6O_2 → 6CO_2 + 6H_2O + energy$</p> Signup and view all the answers

<p>Photosynthesis, respiration, decomposition</p> Signup and view all the answers

<p>Sun (B)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>An organism that makes its own organic nutrients, usually using energy from sunlight, through photosynthesis.</p> Signup and view all the answers

<p>decomposer</p> Signup and view all the answers

<p>Energy is lost at each level (D)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Energy is lost as heat and through metabolic processes at each trophic level.</p> Signup and view all the answers

<p>Energy decreases at each level (A)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Loss of species diversity</p> Signup and view all the answers

<p>increase</p> Signup and view all the answers

<p>Organisms rely on each other and their environment. (B)</p> Signup and view all the answers

<p>Chili crab</p> Signup and view all the answers

<p>disruption</p> Signup and view all the answers

<p>Disease wipes out mice = Rabbit population increases Farmer plants more grains = Rabbit population may stabilize Increased owl population = Rabbit population decreases</p> Signup and view all the answers

<p>Improving soil quality (B)</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>Climate change and overharvesting</p> Signup and view all the answers

<p>endangered</p> Signup and view all the answers

<p>Monitoring species = Following and assessing animal populations over time Education = Raising awareness to promote conservation efforts Captive breeding = Breeding endangered species in controlled environments Seed banks = Storing seeds to preserve plant biodiversity</p> Signup and view all the answers

<p>Climate change contributions (B)</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>They pose a risk of animals being hit by cars.</p> Signup and view all the answers

<p>To reconnect fragmented habitats (C)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>The overall area in which wildlife can live.</p> Signup and view all the answers

<p>plants</p> Signup and view all the answers

<p>Finding food = Becomes more challenging for wildlife Mates availability = Can decrease due to smaller habitats Living space = May become limited Wildlife overpass = Provides a safe crossing for animals</p> Signup and view all the answers

<p>Increased risk of animal-vehicle collisions (C)</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>When was this photograph taken?</p> Signup and view all the answers

<p>Decreased genetic diversity (D)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Habitat destruction and climate change</p> Signup and view all the answers

<p>regeneration</p> Signup and view all the answers

<p>Monitoring and protecting species and habitats = Ensures species have safe areas to thrive Education = Raises awareness about conservation efforts Captive breeding programmes = Aims to increase population numbers in controlled environments Seed banks = Preserves genetic material for future restoration efforts</p> Signup and view all the answers

<p>Pesticide use (A)</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>They feed on insect larvae and are prey for sparrowhawks.</p> Signup and view all the answers

The transfer of energy through trophic levels in an ecosystem.

Different levels in a food chain, including producers, consumers, and decomposers.

Organisms that produce energy through photosynthesis, like plants.

Organisms that obtain energy by eating other organisms.

The depletion of fish populations due to excessive fishing activities.

Non-native organisms that disrupt ecosystems and outcompete local species.

Diseases can significantly reduce populations of animals in an ecosystem.

The equilibrium in an ecosystem formed by the relationship between producers and consumers.

The Sun is the main source of energy for biological systems.

A sequence showing how energy moves from one organism to another, starting with producers.

Energy transfer between trophic levels is often inefficient due to energy loss.

An organism that obtains energy from dead or waste organic material.

Only about 10% of energy is transferred from one trophic level to the next.

A diagram representing the number of organisms in each trophic level.

The process by which carbon is recycled in the environment through photosynthesis, respiration, decomposition, and fossilization.

The process by which plants convert carbon dioxide and sunlight into glucose and oxygen.

The process by which organisms convert glucose and oxygen into energy, releasing carbon dioxide.

The process of becoming a fossil through burial and mineralization over time.

The chemical process of burning, which releases energy and carbon dioxide.

The process by which natural habitats are damaged or destroyed, leading to loss of species and biodiversity.

Negative impacts such as reduced biodiversity, extinction, and increased carbon dioxide in the atmosphere.

Species that face a high risk of extinction due to various factors like habitat loss and climate change.

Factors leading to extinction, including climate change, habitat destruction, and pollution.

Efforts aimed at preserving the variety of life in ecosystems, including species and their habitats.

Conservation efforts that breed endangered species in controlled environments to increase their population.

Raising awareness and knowledge to promote the protection of endangered species and habitats.

A bridge that allows animals to safely cross roads, reducing vehicle-animal collisions.

The process of breaking larger habitats into smaller, isolated sections due to human structures like roads.

Wildlife in smaller habitats struggle to find food, mates, and shelter due to limited space and resources.

Connecting habitats helps wildlife move freely and maintain biodiversity by expanding their living area.

Habitat fragmentation also impacts plant species and other non-mobile organisms indirectly.

Focused on biodiversity and the relationship between habitats and species conservation.

Important factors to consider when designing roads to minimize habitat fragmentation.

Using designs like wildlife overpasses to envision and implement habitats linkage.

The movement of seeds away from the parent plant to aid in reproduction.

The decline in the variety of life in a particular habitat or ecosystem.

Breeding between closely related individuals, leading to decreased genetic diversity.

Strategies to protect endangered species and their habitats.

A network of interconnected food chains illustrating energy transfer between species.

The effect that human activities have on the environment and ecosystems.